About this Abstract |
Meeting |
2024 TMS Annual Meeting & Exhibition
|
Symposium
|
Additive Manufacturing Modeling, Simulation and Machine Learning
|
Presentation Title |
3D Deep Learning for Pore Stress Concentration Analysis in Additive Manufacturing |
Author(s) |
Daniel Diaz, Vahid Tari, Xingyang Li, Yuheng Nie, Elizabeth Holm, Anthony Rollett |
On-Site Speaker (Planned) |
Daniel Diaz |
Abstract Scope |
Additive manufacturing is a promising technology that is revolutionizing the way we manufacture products, but many properties are limited by porosity produced during processing. To better understand the relationship between pore morphologies and properties, it is necessary to accurately identify the pore types observed and their relationship with stress concentration. To this end we develop a 3D deep learning surrogate model based on EfficientUNet++ that predicts stress concentration information given a pore morphology. Stress field targets and stress concentration factors are calculated using a micromechanical FFT simulation called MASSIF with pores extracted from datasets collected using X-ray computed tomography. A transfer learning approach is utilized where the surrogate model encoder is pretrained on over 500,000 pores using a 3D EfficientNet autoencoder. Training datasets are sampled for MASSIF simulation using clustering of autoencoder latent representations. This has the potential to become a valuable tool for automating the characterization of AM products. |
Proceedings Inclusion? |
Planned: |
Keywords |
Additive Manufacturing, Machine Learning, Modeling and Simulation |